research

Desperately Seeking Non-Standard Phases via Direct CP Violation in bβ†’sgβˆ—b\to sg^\ast Process

Abstract

Attributing the recent CLEO discovery of Bβ†’Ξ·β€²+XsB \to \eta' + X_s to originate (primarily) from the fragmentation of an off-shell gluon (gβˆ—g^*) via bβ†’s+gβˆ—b \to s + g^*, gβˆ—β†’g+Ξ·β€²g^* \to g + \eta', we emphasize that many such states (XgX_g) should materialize. Indeed the hadronic fragments (XgX_g) of gβˆ—g^* states are closely related to those seen in Οˆβ†’Ξ³(Ο•,Ο‰)+Xg\psi \to \gamma (\phi, \omega) + X_g. A particular final state of considerable interest is Xg=K+Kβˆ’X_g=K^+K^-. Signals from such states in BB decays can be combined to provide a very sensitive search for CP violating phase(s) from non-standard physics. The method should work even if the contribution of these source(s) to the rates is rather small (∼10\sim10%) to the point that a comparison between theory and experiment may find it extremely difficult to reveal the presence of such a new physics.Comment: 16 pages, 5 figure

    Similar works

    Full text

    thumbnail-image

    Available Versions

    Last time updated on 02/01/2020